Home / 165,581.76-228,504.24-90,130.08

Finding the Fourth Proportional to 165,581.76, 228,504.24 and 90,130.08

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Solution

The fourth proportional to 165,581.76, 228,504.24 and 90,130.08 is: 124,380.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,581.76 : 228,504.24 = 90,130.08 : x
  2. Step 2: Convert to fraction form
    165,581.76/228,504.24 = 90,130.08/x
  3. Step 3: Cross multiply
    165,581.76x = 228,504.24 × 90,130.08
  4. Step 4: Simplify right side
    165,581.76x = 20,595,105,431.54
  5. Step 5: Solve for x
    x = 20,595,105,431.54/165,581.76
  6. Step 6: Final answer
    x = 124,380.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.